Global Patent Index - EP 3776476 A4

EP 3776476 A4 20210609 - METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING POINT CLOUDS

Title (en)

METHOD AND APPARATUS FOR COMPRESSING AND DECOMPRESSING POINT CLOUDS

Title (de)

VERFAHREN UND VORRICHTUNG ZUM KOMPRIMIEREN UND DEKOMPRIMIEREN VON PUNKTWOLKEN

Title (fr)

PROCÉDÉ ET APPAREIL PERMETTANT DE COMPRESSER ET DE DÉCOMPRESSER DES NUAGES DE POINTS

Publication

EP 3776476 A4 20210609 (EN)

Application

EP 19784245 A 20190411

Priority

  • US 201862656846 P 20180412
  • US 201862684893 P 20180614
  • US 201862696255 P 20180710
  • US 201916242255 A 20190108
  • KR 2019004367 W 20190411

Abstract (en)

[origin: US2019318509A1] A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes receiving a compressed bitstream. The method also includes decoding the compressed bitstream into 2D frames that represent a 3D point cloud, each of the 2D frames including a set of patches representing a cluster of pixels of the 3D point cloud. The method further includes identifying an occupancy map included in the compressed bitstream. The method additionally includes identifying valid boundary points located at a boundary of a patch of the set of patches based on the occupancy map and identifying valid neighboring points of each of the valid boundary points of the patch. The method also includes generating the 3D point cloud using the 2D frames based on the valid neighboring points and the valid boundary points.

IPC 8 full level

G06T 9/00 (2006.01); G06T 17/20 (2006.01); G06V 10/764 (2022.01); H04N 19/597 (2014.01)

CPC (source: EP US)

G06F 18/23 (2023.01 - US); G06T 5/70 (2024.01 - US); G06T 7/90 (2016.12 - US); G06T 9/00 (2013.01 - EP US); G06T 9/001 (2013.01 - US); G06V 10/751 (2022.01 - EP US); G06V 10/764 (2022.01 - EP US); G06V 20/653 (2022.01 - EP US); G06T 2207/10028 (2013.01 - US)

Citation (search report)

  • [XI] "PCC Test Model Category 2 v0", no. n17248, 14 December 2017 (2017-12-14), XP030023909, Retrieved from the Internet <URL:http://phenix.int-evry.fr/mpeg/doc_end_user/documents/120_Macau/wg11/w17248.zip w17248_TMC2v0-v2.docx> [retrieved on 20171214]
  • [XP] HOSSEIN NAJAF-ZADEH ET AL: "[PCC] TMC2 CE2.12 color smoothing of reconstructed point cloud", no. m43717, 11 July 2018 (2018-07-11), XP030196862, Retrieved from the Internet <URL:http://phenix.int-evry.fr/mpeg/doc_end_user/documents/123_Ljubljana/wg11/m43717-v2-m43717_CE2.12_ColorSmoothing-v2.zip m43717_CE2.12_ColorSmoothing-v2.docx> [retrieved on 20180711]
  • [A] "H.265 Recommendation - High efficiency video coding", 1 April 2013 (2013-04-01), XP055206562, Retrieved from the Internet <URL:http://www.itu.int/rec/T-REC-H.265-201304-S/en> [retrieved on 20150806]
  • [AP] JUNTAEK PARK ET AL: "[PCC] CE 2.19 Tiles and slices with non-overlapping patch packing in TMC2", no. m44942, 6 October 2018 (2018-10-06), XP030192917, Retrieved from the Internet <URL:http://phenix.int-evry.fr/mpeg/doc_end_user/documents/124_Macao/wg11/m44942-v1-M44942_v1.zip M44942_v1.docx> [retrieved on 20181006]
  • See references of WO 2019199083A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

US 10964067 B2 20210330; US 2019318509 A1 20191017; EP 3776476 A1 20210217; EP 3776476 A4 20210609; WO 2019199083 A1 20191017

DOCDB simple family (application)

US 201916242255 A 20190108; EP 19784245 A 20190411; KR 2019004367 W 20190411